<template>
  <el-dialog :title="upload.title" :visible.sync="upload.open" width="400px" append-to-body>
    <el-upload
      ref="upload"
      :limit="1"
      accept=".xlsx, .xls"
      :headers="upload.headers"
      :action="upload.url + '?updateSupport=' + upload.updateSupport"
      :disabled="upload.isUploading"
      :on-progress="handleFileUploadProgress"
      :on-success="handleFileSuccess"
      :auto-upload="false"
      drag
    >
      <i class="el-icon-upload"></i>
      <div class="el-upload__text">
        将文件拖到此处，或
        <em>点击上传</em>
      </div>
      <div class="el-upload__tip text-center" slot="tip">
        <div class="el-upload__tip" slot="tip">
          <el-checkbox v-model="upload.updateSupport" />是否更新已经存在的数据
        </div>
        <span>仅允许导入xls、xlsx格式文件。</span>
        <el-link
          type="primary"
          :underline="false"
          style="font-size: 12px; vertical-align: baseline"
          @click="importTemplate"
        >下载模板</el-link>
      </div>
    </el-upload>
    <div slot="footer" class="dialog-footer">
      <el-button type="primary" @click="submitFileForm">确 定</el-button>
      <el-button @click="upload.open = false">取 消</el-button>
    </div>
  </el-dialog>
</template>

<script>
import { getToken } from "@/utils/auth";
export default {
  props: {
    upload: {
      type: Object,
      // 导入参数
      default: {
        // 是否显示弹出层
        open: false,
        // 弹出层标题
        title: "导入",
        // 是否禁用上传
        isUploading: false,
        // 是否更新已经存在的用户数据
        updateSupport: 0,
        // 设置上传的请求头部
        headers: { Authorization: "Bearer " + getToken() },
        // 上传的地址
        url: process.env.VUE_APP_BASE_API + "/busport/cars/importData",
        // 导入数据的来源
        source: ''
      }
    },
  },
  data() {
    return {
    };
  },
  methods: {
    /** 下载模板操作 */
    importTemplate() {
      switch (this.upload.source) {
        case 'cars':
          break;
        default:
          break;
      }
      // this.download(
      //   "system/user/importTemplate",
      //   {},
      //   `user_template_${new Date().getTime()}.xlsx`
      // );
    },
    // 文件上传成功处理
    handleFileSuccess(response, file, fileList) {
      this.upload.open = false;
      this.upload.isUploading = false;
      this.$refs.upload.clearFiles();
      this.$alert(
        "<div style='overflow: auto;overflow-x: hidden;max-height: 70vh;padding: 10px 20px 0;'>" +
          response.msg +
          "</div>",
        "导入结果",
        { dangerouslyUseHTMLString: true }
      );
      this.$emit('getList')
    },
    // 文件上传中处理
    handleFileUploadProgress(event, file, fileList) {
      this.upload.isUploading = true;
    },
    // 提交上传文件
    submitFileForm() {
      this.$refs.upload.submit();
    },
  }
}
</script>

